SOLUTION: Perform the indicated operation and simplify. Write the answer in the form a + bi. (4-2i)2 Possible answers: A) None B) 16 - 12i C) 16 - 20i D) 20 - 16i E) 12 - 1

Algebra ->  Exponents -> SOLUTION: Perform the indicated operation and simplify. Write the answer in the form a + bi. (4-2i)2 Possible answers: A) None B) 16 - 12i C) 16 - 20i D) 20 - 16i E) 12 - 1      Log On


   

Question 728511: Perform the indicated operation and simplify. Write the answer in the form a + bi.
(4-2i)2
Possible answers:
A) None
B) 16 - 12i
C) 16 - 20i
D) 20 - 16i
E) 12 - 16i
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
(4-2i)^2

(4-2i)(4-2i)

4(4-2i)-2i(4-2i)

16-8i-8i+4i^2

16-8i-8i+4(-1)

16-8i-8i-4

12-16i which is Choice E)